Chemical Thermodynamics Question 134
Question: An ideal gas expands in volume from $ 1\times {{10}^{-3}}m^{3} $ to $ 1\times {{10}^{-2}}m^{3} $ at 300 K against a constant pressure of $ 1\times 10^{5}N{{m}^{-2}} $ . The work done is [AIEEE 2004]
Options:
A) 270 kJ
B) -900 kJ
C) -900 J
D) 900 kJ
Show Answer
Answer:
Correct Answer: C
Solution:
$ W=-P\Delta V $
$ =-1\times 10^{5},(1\times {{10}^{-2}}-1\times {{10}^{-3}}) $
$ =-1\times 10^{5}\times 9\times {{10}^{-3}}=-900,J $
